What School Leaders Need to Know about Digital Technologies and Social MediaScott McLeod, Chris Lehmann, David F. Warlick · First published 2011Open the Tome
Paleontology and paleoecology of the upper Ordovician, Martinsburg formation, Swatara gap, Lebanon County, PennsylvaniaDavid F Lehmann · First published 1986Open the Tome
InterpretationPaul Lehmann, John H. Yoder, David Little, Charles M. Swezey, Stanley Hauerwas, James F. Childress, Gene Outka · First published 1980Open the Tome
